BP has built a great selection, all of them worth reading and that will help you build foundational knowledge.To answer this one: the words from old school investor Dolf De Roos "seldom sell" and you will find a lot of post on BP from people who regret selling properties in the past.

@Caryn Fischer  The downside of gifting or selling property to your children is that it can have capital gains tax consequences.

If not I wouldn't bother selling as there is an incredible amount of money lost in buying and selling properties, so you have to make sure you have a plan to maximize the equity and actually have enough. 

@Griffin Brenseke The decision to sell vs hold a property is full of those little decisions you describe that make such a difference in cash flow.

Do you think we will easily sell this house?

Selling would likely mean taking on new loans at much higher rates, reducing your cash flow margin unless the new properties are stellar performers.Transaction Costs and Taxes: Selling could trigger capital gains taxes (depending on exemptions) and other selling costs, eating into your net proceeds.

Quote from @Mitchell Coles: In Ohio, property liens are typically recorded at the county level, making the County Recorder's Office a valuable resource for property research.

It will only appraise based on comps of similar residential properties.

I don’t have a loan on the property and hold it cash, but, if I sell it would lend the profits as hard money and earn 10%+. 

The house, if listed to sell, would likely be in the $320k range.